Diesel engine



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P. HENTSCHKE DIESEL ENGINE Filed Jan. 20, 1920 Patented Aug. 14, i923.

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Y -JPAUL HENTSCHKE, OF LOS ANGELES, CALIFORNIA.

' 4:DIESEL ENGINE.

Application led January 20,1920. Serial No. 352,782.

` i To a-ZZ whom z't may concern.'

hydrocarbon engines of the Diesel type, andv particularly toprovide an engine of this character that will operate withv facility o-n a two-strokecvcle and four-stroke cycle and has for its object to eliminate the use of ignition devices-in'engines of this type; and to provide foran initial ignition or expulsion of fuel from a pocket -into the piston cylinder of the engine.,` The invention consists of the` construct-ion, and in l'details and arrangements of the parts, an embodiment of which is illustrated in the accompanying drawings and described and claimed herein.

'Figure 1 isa sectional View of the upper .portion of the piston cylinder of an engine showing in detail the construction of the fuel atomizing and heating device.

' Fig. 2 isa transverse -section on line 2-2 of F ig. 1.

The engine of thepresent invention is of the type in which a low gravity fuel oil is supplied in intermittent charges through the feed pipe 2, entering a block 3 having a valve seat 4 surrounding the passage way 5,

which is closed-bythe outward movement of a valve member 6 in the form "mounted in a bushing 9,

of a ball supported-onl an expansile spring 7, the lower end of which bears, for instance, on the upper end of a. nozzle 8 that is removably longitudinally and centrally bored at 10 to ber 11 formed in a-removable block 12 fitted into a bore 13 inthe head 14 casing or. cylinder 15'. v.

l'll`hev block 12 is removably mounted inthe bore 13 and maybe secured-in of the engine secured at 17 to the cylinderhead 14. Within this cylinder is operative the -usual piston 18, which, on the downward stroke,'ymay oplf` erate toopen an air inlet valve 19 andy on the return stroke compresses the air under the head 'of lthe cylinder. l t.

'Anfimportant feature of the present inthe 'combinationy .from the basin 'and in a thoroughly carbureted condition 'through the Aapertures'25 into the piston receive the nozzley 8 which projects downwardly into a chamlplace below a retainer 16 bolted or otherwise suitably -30 formed in block 12 flower portion of chamber 1 1.; The circulavention is to provide for the retention of the successive charges of fuel introduced into the chamber 11 from the nozzle 8 so that gases therefrom will be readily ignited when the p-ressurein the cylinder reaches apredef termined degree combined with the temperature of the block v12 and this ignition. of a charge in the. chamber 11 will"l result in the expulsion of the non- A1ignited-'vapors `from the chamber 11 in an atomized 'condition into the power chamber in which the piston operates. This retention of fuel is secured by providing at the bottom of the chamber 11 a basin 21 in the forni of a shallow recess formed below the contracted passage way 22 at the lower end of t-he chamber 11 and which passage way discharges into an enlargedpocket 23v Fig. 2 the bottom of which forms a basin 21, the front portion of the basin being formed by a lip or wall 24 shown as provided with apertures 25, radially disposed andhaving their outer ends flared or enlarged as at 26 to facilitate the issue and .expansion of the liquids, vapors, and gases, as they are forced out of the pocket 23 by the pre-ignition of the vapors ofthe oil in the basin 21.

The upper body portion of theblock 12 l is .made of predetermined and calculated thickness so as to retain a suitable d ree of heat to cooperate with the heat of com-A pression of the air charged in the expulsion or piston chamber when a portion of this' compressed Huid or air in the chamber 11 reaches an ignitingpoint. This initial ignition causes the expansion of the vapors 'and gases and'- their discharge from the chamberall carrying with them the liquid 2 1, vthe whole passing rapidly chamber where the maximum expansion effectof theigniting'vapors operatein the vusual mannerimpulsi'vely on the piston.

ing medium as water into the water spaces provided (as indicated.

One of these waterspaces is a passageway and surrounding the tion of water through this passageway will assist in maintaining the desired temperabasin 23 and the spray nozzles 25 extends Within the working cylinder of the engine, and that Water passageway is continued `into this projecting portion of block 12 so the Diesel type; an expansion chamber with its piston; and a chamber in communiy cation with the eX-p-ansion chamber and adapted to receive `and retain successive charges of fuel, the said charges being successively expelled from the receiving chami ber in an atomized condition when the vapors lor gases arising from the charges Vin the receiving chamber are ignited by the combined temperatures of compression and absorptions in the operation of the engine; said receiving chamber comprising an elongated passage .having a fuel inlet at its upper end and tapering downwardly in size to a second elongated passage leading to. a

basin-like bottom to' retain a charge momentarily and lhaving spraying apertures -ingV a hea-t retaining element havingafueli chamber receiving chamber therein,l said comprislng an elongated\passage communicating at its upper en d with the fuel inlet,

and tapering downwardlyl to a second elongated passage, said elementhavingalavater u space surroundingthe fuel receiving chamber, and saidchamber having a basin like bottom communicating with said second passage, the fuel in the receiving chamber adapted to be ignited by the heat of compression and cause the'fuel contained in the basin like bottom to be expelled in a vaporized condition into the expansion chamber.

In testimony whereof I have signed name to this specification.

PAUL HENTsoHKE; 

